# Stainless steel 8-way manifold with flow meters, thermostatic valves, drain valves and automatic air vents — SiGMA-Li

**URL:** https://aio.lv/en/product--sigma-li-rsztpx-8--11829351
**Data updated:** 2026-03-09 14:38 (EET)
**Category:** Underfloor Heating
**Manufacturer:** SiGMA-Li
**Manufacturer code:** RSZTPX-8
**EAN:** 5902837607894
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 160.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 133.05 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sigma-li-rsztpx-8--11829351

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Stainless steel 8-way manifold by SiGMA-Li (MPN RSZTPX-8) for hydronic distribution systems. The manifold includes individual flow meters for balancing, thermostatic control valves for temperature regulation, drain valves for maintenance and automatic air vents for de-aeration. Designed for underfloor heating or multi‑zone radiators to distribute and balance heating circuits reliably.

## Long description

Stainless steel 8-way manifold with flow meters, thermostatic valves, drain valves and automatic air vents — SiGMA-Li is a compact hydraulic distribution unit designed for hydronic systems. Manufactured from stainless steel, the manifold provides eight individually controllable circuit outlets with integrated flow meters for precise balancing, thermostatic control valves for temperature regulation, drain valves for easy maintenance and automatic air vents to remove trapped air. It is intended for use in underfloor heating and multi‑zone radiator systems where reliable distribution and simple adjustment are required.
Advantages
The stainless steel construction resists corrosion and extends service life in wet heating environments. Individual flow meters allow accurate balancing of each circuit without disassembly, while thermostatic valves enable temperature control at the manifold level for each zone. Drain valves simplify flushing and maintenance procedures, and integrated automatic air vents reduce noise and improve hydraulic performance by removing air from the circuits. Compact layout and clear meter readouts facilitate installation and commissioning in technical rooms or manifold cabinets.
Suitable for
Underfloor heating systems with up to eight circuits
Multi‑zone radiator installations requiring individual circuit control
Renovation or new construction projects needing a corrosion‑resistant manifold
Commercial or residential buildings where balanced flow and de‑aeration are important
Key specifications
Material: stainless steel body and fittings suitable for potable and heating water
Number of outlets: 8 independently controlled circuits
Balancing: individual flow meters on each circuit for visual flow control
Control elements: thermostatic valves integrated per circuit for temperature regulation
Maintenance features: drain valves for each circuit to enable flushing and emptying
Air management: automatic air vents incorporated to remove trapped air
Connection compatibility: standard fittings for connection to typical hydronic piping (check installer requirements)
How to use
Install the manifold according to system design and local plumbing codes, ensuring correct inlet and outlet orientation and secure mounting within the manifold cabinet or technical room. Connect supply and return lines and attach each circuit pipe to the corresponding outlet. Use the built‑in flow meters to set and balance flow rates for each zone by adjusting flow controls until required values are achieved. Fit appropriate thermostatic heads or actuators on the thermostatic valve spindles where automatic room temperature control is needed. Open drain valves when flushing or filling the system and allow automatic air vents to purge air during initial commissioning and periodic bleed cycles.
Usage recommendations
Commission the manifold with a qualified installer: perform a hydraulic test, balance flows using the integrated flow meters, and verify that automatic air vents operate correctly. Regularly inspect for leaks, check flow meter readings and bleed air if noisy operation occurs. Use corrosion‑inhibiting additives only if compatible with stainless steel manifolds and in accordance with system manufacturer guidance.

## FAQ

### How much does the Stainless steel 8-way manifold with cost, and is it available for purchase?

The price is 160.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Stainless steel 8-way manifold with be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All SiGMA-Li products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized SiGMA-Li service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11829351/67230192_large.webp